C3N5 catalyst based on bismuth monatomic anchoring as well as preparation method and application of catalyst
A catalyst and amino technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of limited large-scale application, high cost and high price of silver single-atom catalysts, and achieve large-scale applications Potential, stable effect, strong operability
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Embodiment 1
[0032] Embodiment 1 provides a kind of synthetic Bi 1 / C 3 N 5 The method of catalyst, concrete process is as follows:
[0033] (1) Weigh 16g of polyaminoorganic 3-amino-1,2,4-triazole, and dissolve it rapidly and completely in 100mL deionized water with the assistance of ultrasound or stirring to obtain solution A; at the same time, 1.97g of Bismuth nitrate was sonicated or stirred into 15 mL of ethylene glycol to form solution B.
[0034] (2) In the case of continuous stirring, pipette 0.0625mL of solution B dropwise into 10mL of solution A in the middle, and continue to stir for 12 hours to make bismuth ions and 3-amino-1,2, 4-triazole is fully coordinated.
[0035](3) The obtained mixture was vacuum-dried at 90° C. until a solid product was obtained. In the fourth step, the obtained solid product is calcined in a muffle furnace (heating rate: 5°C / min, target temperature: 500°C, holding time 3 hours) to obtain Bi 1 / C 3 N 5 catalyst.
[0036] The Bi prepared by emb...
Embodiment 2～4
[0039] Bi 1 / C 3 N 5 The catalyst degrades CBZ under UV light irradiation. The concentration of the catalyst is 0.5g / L; the wavelength of ultraviolet light is 253.7nm, and the light intensity is 75mw / cm 2 ; The concentration of CBZ is 10mg / L; the stirring speed is 750r / min; the reaction time is 30min. The specific experimental conditions are shown in Table 1 below.
[0040] Each experimental condition parameter situation and degradation rate in table 1 embodiment 2~4
[0041]
[0042] The moment concentration c and the initial concentration c of CBZ are detected in Examples 2-4 0 The ratio of the time-varying curve is as follows image 3 shown.
Embodiment 5～7
[0044] Bi 1 / C 3 N 5 The catalyst degrades SP under UV light irradiation. The concentration of the catalyst is 0.6g / L; the wavelength of ultraviolet light is 253.7nm, and the light intensity is 80mw / cm 2 ; The concentration of SP is 10mg / L; the stirring speed is 800r / min; the reaction time is 30min. The specific experimental conditions are shown in Table 2 below.
[0045] Each experimental condition parameter situation and degradation rate in table 2 embodiment 5~7
[0046]
[0047] The moment concentration c and the initial concentration c of SP detected in Examples 5-7 0 The ratio of the time-varying curve is as follows Figure 4 shown.
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